Daily Practice

GCSE Science

19th September 1981

5 questions · GCSE · 584 questions in this band

1
Ecology
Explain why deforestation to create land for cattle grazing can reduce biodiversity.
2
Ecosystems, Adaptation and Feeding Relationships
State one abiotic factor that can affect the population of fish living in a pond.
3
Biodiversity, Cycles and Human Impact
State one way in which high biodiversity benefits an ecosystem.
4
Chemistry Required Practicals and Data Analysis
Why is the burette rinsed with the solution it is going to contain rather than with water?
5
Atomic Structure and the Periodic Table
A sample contains 90% of an isotope with mass number 10 and 10% of an isotope with mass number 11. Calculate the relative atomic mass, to 1 decimal place.

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